/*
 *  Copyright (c) 2001-2007, Jean Tessier
 *  All rights reserved.
 *  
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *  
 *      * Redistributions of source code must retain the above copyright
 *        notice, this list of conditions and the following disclaimer.
 *  
 *      * Redistributions in binary form must reproduce the above copyright
 *        notice, this list of conditions and the following disclaimer in the
 *        documentation and/or other materials provided with the distribution.
 *  
 *      * Neither the name of Jean Tessier nor the names of his contributors
 *        may be used to endorse or promote products derived from this software
 *        without specific prior written permission.
 *  
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
 *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jeantessier.dependency;

public class GraphCopier extends VisitorBase {
    private NodeFactory scopeFactory  = new NodeFactory();
    private NodeFactory filterFactory = new NodeFactory();

    public GraphCopier() {
        super();
    }

    public GraphCopier(TraversalStrategy strategy) {
        super(strategy);
    }
    
    public NodeFactory getScopeFactory() {
        return scopeFactory;
    }
    
    public NodeFactory getFilterFactory() {
        return filterFactory;
    }

    protected void preprocessPackageNode(PackageNode node) {
        super.preprocessPackageNode(copy(getScopeFactory(), node));
    }

    public void visitInboundPackageNode(PackageNode node) {
        if (getStrategy().isInFilter(node)) {
            copy(getFilterFactory(), node).addDependency(getCurrentNode());
        }
    }

    public void visitOutboundPackageNode(PackageNode node) {
        if (getStrategy().isInFilter(node)) {
            getCurrentNode().addDependency(copy(getFilterFactory(), node));
        }
    }

    protected void preprocessClassNode(ClassNode node) {
        super.preprocessClassNode(copy(getScopeFactory(), node));
    }

    public void visitInboundClassNode(ClassNode node) {
        if (getStrategy().isInFilter(node)) {
            copy(getFilterFactory(), node).addDependency(getCurrentNode());
        }
    }

    public void visitOutboundClassNode(ClassNode node) {
        if (getStrategy().isInFilter(node)) {
            getCurrentNode().addDependency(copy(getFilterFactory(), node));
        }
    }

    protected void preprocessFeatureNode(FeatureNode node) {
        NodeFactory factory = getScopeFactory();
        super.preprocessFeatureNode(copy(factory, node));
    }

    public void visitInboundFeatureNode(FeatureNode node) {
        if (getStrategy().isInFilter(node)) {
            copy(getFilterFactory(), node).addDependency(getCurrentNode());
        }
    }

    public void visitOutboundFeatureNode(FeatureNode node) {
        if (getStrategy().isInFilter(node)) {
            getCurrentNode().addDependency(copy(getFilterFactory(), node));
        }
    }

    protected PackageNode copy(NodeFactory factory, PackageNode node) {
        return factory.createPackage(node.getName(), node.isConfirmed());
    }

    protected ClassNode copy(NodeFactory factory, ClassNode node) {
        copy(factory, node.getPackageNode());
        return factory.createClass(node.getName(), node.isConfirmed());
    }

    protected FeatureNode copy(NodeFactory factory, FeatureNode node) {
        copy(factory, node.getClassNode());
        return factory.createFeature(node.getName(), node.isConfirmed());
    }
}
